Enraged Toulon owner Mourad Boudjellal has threatened to sue the Australian Rugby Union for "millions of euros" if Quade Cooper backflips on his big-money contract with the French club.
Cooper had been set to join Toulon after the World Cup, but reports this week indicate the Wallabies and Reds five-eighth has opted to stay in the country on a four-year deal with the aim of leading the Australian Sevens team's charge to the Rio Olympics.
In a dramatic tirade on French radio, Boudjellal accused the ARU of playing dirty for continuing to negotiate with Cooper after he had already committed to Toulon.
"They are speaking to a player who they know has signed," Boudjellal told Sud Radio.